[amsat-bb] question about ao-51

[N. Mahdinejad]

Dear amsat members.
I have question about reciveing analouge signals from satellites in S- band.
In amsat webpage there is only ao-51, is there any other satellite or not?
another question is about ao-51, for receiving  from ao-51 in s-band which
technical specification of antenna is need? Is there need to track the
satellite in s-band,  or not, the position of antenna(azimuth & elevation)
is fix. i mean is there need to locate antenna up the rotator?
Any help would be gratefully appreciated.
Best Regards.
N.Mahdinejad